OF WASHINGTON, VOLUME XVIII, 1916 113 



by short bright yellow pile, the wing bases are a deep yellow, the 

 wing roots are reddish brown with short, yellow bristles and the 

 base of the costa has short, bright yellow bristles. 



In crawfordi the spiracle below the humerus is surrounded by 

 short, brown pile, the wing bases are brownish yellow, the wing 

 roots blackish, with short, black bristles and the bristles on the 

 base of the costa are black and yellow. 



Mr. Crawford has helped me considerably in working up the 

 material of this group and it is with great pleasure that I name 

 this species in his honor. 



Besides the above specimens the National Collection contains the 

 following specimens of doubtful specific position:- One female speci- 

 men from Lake Co., Cal., (D. W. Coquillett Coll.), which differs in 

 having the frons yellow above the antennae, the pile on thorax and 

 abdomen more golden and the wings lighter at base; another 

 female from Kaslo, B. C., June 12, (R. P. Currie Coll ) differs in 

 having the third antennal joint obviously broader than long; the 

 anterior cross vein joins the discal cell at the middle and the hind 

 femora are almost entirely yellowish red. 



A REVIEW OF NORTH AMERICAN TORTOISE BEETLES. 



(Chrysomelidae; Cassidinae.) 

 BY H. S. BARBER, Bureau of Entomology. 



The writer recently rearranged the National Collection of North 

 American species of cassidids according to the catalogue of this 

 group by Spaeth 1914 (Junk's Coleopt. Catal., pt. 62) and was 

 much surprised at the result, for the six genera and twenty spe- 

 cies of the Henshaw list and supplement have now become six- 

 teen genera and twenty-eight species with several additional sub- 

 species, varieties and aberrations. Of our fauna as here treated 

 five genera and eleven species are tropical, entering our south- 

 ern limits at only one or two points, while two or three European 

 species are reported to have become established; a few of the 

 species listed below do not deserve continued space in our lists. 

 Only seven of our species appear to be known exclusively from 

 the United States and we have no genus peculiar to our fauna. 



For our few species we have heretofore gotten along very well 

 with but few genera. Yet when our forms, which are in reality 

 only the northern fringe of a great tropical fauna, are studied in 

 connection with their closest relatives of other regions, finer 

 generic distinctions are demanded and new generic terms are forced 

 upon the unwilling local collectors. Our own systematic litera- 

 ture is, as might be expected, comparatively meager and it is 



